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authorMarc Zyngier <marc.zyngier@arm.com>2014-02-18 14:29:03 +0000
committerMarc Zyngier <marc.zyngier@arm.com>2014-03-03 01:15:22 +0000
commita3c8bd31af260a17d626514f636849ee1cd1f63e (patch)
tree55b4d57d442e32271bab31615b28e089e616e12e /arch/arm/kvm
parent4d44923b17bff283c002ed961373848284aaff1b (diff)
downloadlinux-a3c8bd31af260a17d626514f636849ee1cd1f63e.tar.bz2
ARM: KVM: introduce kvm_p*d_addr_end
The use of p*d_addr_end with stage-2 translation is slightly dodgy, as the IPA is 40bits, while all the p*d_addr_end helpers are taking an unsigned long (arm64 is fine with that as unligned long is 64bit). The fix is to introduce 64bit clean versions of the same helpers, and use them in the stage-2 page table code. Signed-off-by: Marc Zyngier <marc.zyngier@arm.com> Acked-by: Catalin Marinas <catalin.marinas@arm.com> Reviewed-by: Christoffer Dall <christoffer.dall@linaro.org>
Diffstat (limited to 'arch/arm/kvm')
-rw-r--r--arch/arm/kvm/mmu.c10
1 files changed, 5 insertions, 5 deletions
diff --git a/arch/arm/kvm/mmu.c b/arch/arm/kvm/mmu.c
index fc71a8df0e13..c1c08b240f35 100644
--- a/arch/arm/kvm/mmu.c
+++ b/arch/arm/kvm/mmu.c
@@ -145,7 +145,7 @@ static void unmap_range(struct kvm *kvm, pgd_t *pgdp,
pgd = pgdp + pgd_index(addr);
pud = pud_offset(pgd, addr);
if (pud_none(*pud)) {
- addr = pud_addr_end(addr, end);
+ addr = kvm_pud_addr_end(addr, end);
continue;
}
@@ -155,13 +155,13 @@ static void unmap_range(struct kvm *kvm, pgd_t *pgdp,
* move on.
*/
clear_pud_entry(kvm, pud, addr);
- addr = pud_addr_end(addr, end);
+ addr = kvm_pud_addr_end(addr, end);
continue;
}
pmd = pmd_offset(pud, addr);
if (pmd_none(*pmd)) {
- addr = pmd_addr_end(addr, end);
+ addr = kvm_pmd_addr_end(addr, end);
continue;
}
@@ -176,10 +176,10 @@ static void unmap_range(struct kvm *kvm, pgd_t *pgdp,
*/
if (kvm_pmd_huge(*pmd) || page_empty(pte)) {
clear_pmd_entry(kvm, pmd, addr);
- next = pmd_addr_end(addr, end);
+ next = kvm_pmd_addr_end(addr, end);
if (page_empty(pmd) && !page_empty(pud)) {
clear_pud_entry(kvm, pud, addr);
- next = pud_addr_end(addr, end);
+ next = kvm_pud_addr_end(addr, end);
}
}